annual contract for mechanical maintenance and allied jobs at lpg bottling plant , durgapur , daily checking , cleaning & servicing of frls at filling shed , filled shed , cr shed , tld , empty shed , rovs , pump house and air compressor house . the job includes draining of condensates , topping-up of lubricants , cleaning of filter element , replacement of filter element as and when necessary and arresting of leakage of air , if any . all the spares and consumables will be supplied by iocl . ( considering 26 working days and 2 sundays operation on both shifts / night shift bottling if any ) , routine checking and calibration of filling machines of carousel ( s ) / 47 . 5 kg & 425 kg filling facility in a shift or as directed and maintenance of filling guns as and when required and directed by ioc officers to ensure no leak of filling guns . job also includes cleaning of all reflectors , sensors and maintenance / servicing of all the pneumatic gadgets of carousel ( s ) including gas stop valves on a regular basis . checking rail & wheel conditions of carousels . replacing of wheel & wheel bearing as and when required and directed by ioc officers . ( considering 26 working days and 2 sundays operation on both shifts / night shift bottling if any ) , adjusting of cylinders ejection / introduction from / to filling machines of all carousals to ensure no stoppage of cylinders at ejection point and smooth entry of cylinders to filling machines . the job is also including replacement of taflon strip , tightening of nuts and bolts , cleaning on pneumatic silencer and adjustment of carousal speed for changing in filling of 14 . 2 kg and 19 kg as per advice of floor officer . ( considering 26 working days and 2 sundays operation on both shifts / night shift bottling if any ) , servicing and replacement of spares of carousel ( s ) , filling machines , gas stop valves , sovs , communication input and output boxes , integrated check scale ( s ) , drive units , central column , introduction and ejection unit of carousels , all equipment of 47 . 5 kg & 425 kg filling facility . job has to be undertaken on requirement basis including holiday / non-working shifts as directed / guided by officers . the job includes necessary replacements of mechanical / electronic spares including electronic pcb . ( considering 26 working days and 2 sundays operation on both shifts / night shift bottling if any ) , inspection and maintenance of conveyor system in plant . the job includes necessary assistance and repairing for maintaining proper tension of conveyor chain , replacement of all types of sprockets , plummer block , bearing and any type of conveyor breakdown ( excluding hot work ) at any point of time including night shift . ( considering 26 working days and 2 sundays operation on both shifts / night shift bottling if any ) , maintaining zero soap solution leakage from conveyors . job is including necessary hot works and cold works including change of conveyor joint gaskets , positioning of over flow hose of soap trays . ( considering 26 working days and 2 sundays operation on both shifts / night shift bottling if any ) , daily checking of conveyor drive unit for oil level , chain tension etc . and necessary topping of lube oil , adjusting chain tension etc . the job includes replacement of rubber bush and maintaining /making proper alignment . ( considering 26 working days and 2 sundays operation on both shifts / night shift bottling if any ) , repairing and maintenance of gear boxes under the supervision of ioc officials as & when directed . job includes replacement , inside cleaning of gear boxes , replacement of oil seals/spares like bearing , worn wheels and worn shafts if required and keeping gear boxes with no oil leakage & maintenance of worm / helical gear boxes . ( considering 26 working days and 2 sundays operation on both shifts / night shift bottling if any ) , daily checking and servicing of hot air sealing units , weight correction units , vcwes , auto evacuation unit , rqcs etc . the job is including replacement of spares , adjusting and ensuring for smooth and proper functioning of each and every pneumatic gadgets , replacement of consumables on preventive measure basis , checking and rectification for proper centering ( wherever applicable ) . jobs are to be done as per the direction of ioc engineers . ( considering 26 working days and 2 sundays operation on both shifts / night shift bottling if any ) , daily checking & servicing of purging unit , rqc unit , valve change unit and electronic check scale , evacuation compressors & tanks , auto - change over with hla of evacuation tanks . the job is including replacement of spares adjusting and ensuring for smooth and proper functioning of each and every pneumatic gadgets . replacement of consumables on preventive measure basis , checking and rectification for proper centering ( wherever applicable ) . jobs are to be done as per the direction of ioc engineers . ( considering 26 working days and 2 sundays operation on both shifts / night shift bottling if any ) , daily checking of gd / pt and old / vld segregator ( s ) . replacement of consumables , maintaining smooth functioning of electronic / pneumatic gadgets and gun centering . proper functioning of machine is to be ensured . jobs are to be done as per the direction of ioc engineers . ( considering 26 working days and 2 sundays operation on both shifts / night shift bottling if any ) , daily checking of washing units and cleaning of spray nozzles . water coming out from washing unit is to be maintained properly to take it out to the tank and to avoid water flow at and around the washing unit . jobs includes maintenance of washing units pumps and strainer cleaning ( considering 26 working days and 2 sundays operation on both shifts / night shift bottling if any ) , daily checking of lubricating oil level in lpg vapour compressors , lpg pumps , service water pump and drinking water pumps and topping-up of recommended lube oil , if required and draining & replacement of lube oil after thorough cleaning of lube oil casing & gland packing replacement of water pumps , foot valve replacement , necessary lubricating oil & spares shall be supplied by ioc . ( considering 26 working days and 2 sundays operation on both shifts / night shift bottling if any ) , cleaning of line strainer of lpg pumps , vapour compressor , vcwes and carousal inlet line etc . the job includes necessary opening / dismantling of strainer , cleaning of strainer and assembling the same . necessary spares and consumables shall be supplied by ioc . , checking , tightening & replacement of foundation bolts of air / vapour compressor / lpg pumps/ service water pumps & checking of belt tension of air / vapour compressor and replacement of belts if required . necessary spares and consumables shall be supplied by ioc . , hot work at filling shed , filled shed , empty shed , and cr shed . the job is including necessary gas cutting /welding . party has to supply consumables like oxygen and electrodes etc . ioc will supply power and lpg only . party also should have his own machineries . , daily checking and calibration / repair of check scales , weight reduction unit / correction unit , degassing unit , avts / ol / vl and 47 . 5 / 425 kg filling facilities and undertaking daily routine checking of integrated correction unit , hot air sealing unit , screw/unscrew machine , evacuation unit and purging unit and providing assistance for repair and maintenance of the said equipments/units as and when required and as directed by ioc officers . the job also includes providing assistance in repairing/maintenance of the mentioned equipments in sundays/holidays and also in night shift , if required , for attending any breakdown . necessary spares an